In fact, I don't quite understand why the Tang Dynasty was also an aggressor, because Li Yuan belonged to the anti-Sui cause that followed the peasant uprising, and Li Yuan himself was a Han Chinese, and he was still a very large clan, so how can we say that the Tang Dynasty was an aggressor?
As for saying that the Jin Dynasty was an aggressor, I still agree with this, because the Jin Dynasty is a Jurchen ethnic group, so for the Chinese nation, this can also be regarded as a foreign invasion war.
In fact, leaving aside the identity of the Tang Dynasty and the Jin Dynasty itself, it is still very easy to answer the question of the Yang Dynasty and the Jin Dynasty, because there are too many topics in the Tang Dynasty, and there are many documents left by history.
More importantly, the prosperous era created during the Tang Dynasty is still convincing to us today, because the rulers of the Tang Dynasty were originally Han Chinese, and many people feel that Li Shimin's blood is not pure, because it seems that his mother is a Hu person, even so, Li Shimin grew up in a Han environment, so he is no different from the Han people.
The Tang Dynasty was much larger than the Jin Dynasty in terms of both economic culture and social volume, and the Jin Dynasty was only one hundred and twenty years old, so this was indeed much worse than the Tang Dynasty.
More importantly, the ruler of the Jin Dynasty was not Han, so when he unified the world, the biggest issue he needed to consider was life, habits and culture, so the Jin ruler spent most of his time on national unification, which was also a key reason why the Jin Dynasty did not have much topic.
In addition, it is not the modern people who promote the Tang Dynasty and suppress gold, but the historical Chinese people were originally Yang Tang and suppress gold, because after all, it belongs to the ethnic minorities that occupied China, so for the foreign invaders of ethnic minorities, the Chinese people are not very welcome.
The Song Dynasty is a good example, why it can persist for so many years, which has a lot to do with the common people working together against foreign invaders. So ethnic minorities are always unwelcome. In addition, there are always many problems in ethnic integration, and as ethnic minority rulers, it is difficult to implement various policies gently, so this is also an important reason why they are hated by the people.
Yang Tang suppressed Jin is actually very normal, and there are not many historical records about the Jin Dynasty today, so how can the Jin Dynasty be compared with the Tang Dynasty. So I think this phenomenon is very normal.